We're dividing 53153299 by 644 
Let's see how many times 644 fits into 53153299.

Moving on to step 1:
If we divide 5 by 644, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 644

Moving on to step 2:
644 can be fit into 53 0 times, resulting in a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Include the next digit (1) from the dividend after 53, then repeat: 531 / 644

On to step 3:
When dividing 531 by 644, we get 0 with a remainder of 531.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 531, we end up with 531.
Fetch the next digit (5) from the dividend, attach it to 531 and continue: 5315 / 644

Advancing to step 4:
If we divide 5315 by 644, we get 8 and a remainder of 163.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 5152 from 5315, we get 163.
Fetch the next digit (3) from the dividend, attach it to 163 and continue: 1633 / 644

Advancing to step 5:
The number 644 fits into 1633 2 times, leaving a remainder of 345.
Write down 2 as next digit of the result. 
Result so far: 82.0
Subtracting 1288 from 1633 leaves us with 345.
Append the next digit (2) from the dividend to 345 and continue with: 3452 / 644

Moving on to step 6:
If we divide 3452 by 644, we get 5 and a remainder of 232.
The number 5 becomes the next digit in our result. 
Result so far: 825.0
The remainder is 232 after subtracting 3220 from 3452.
Take the next digit (9) from the dividend and append it to 232, then repeat: 2329 / 644

Advancing to step 7:
The number 644 fits into 2329 3 times, leaving a remainder of 397.
Put 3 as the next digit of the answer. 
Result so far: 8253.0
If we take 1932 away from 2329, we end up with 397.
Append the next digit (9) from the dividend to 397 and continue with: 3979 / 644

Going ahead to step 8:
3979 divided by 644 is 6 with a remainder of 115.
Use 6 as the next digit of our solution. 
Result so far: 82536.0
Deduct 3864 from 3979 and we're left with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

On to step 9:
644 can be fit into 1150 1 times, resulting in a remainder of 506.
Use 1 as the next digit of our solution. 
Result so far: 82536.1
If we subtract 644 from 1150, we get 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Moving on to step 10:
644 goes into 5060 7 times with a remainder of 552.
Write down 7 as next digit of the result. 
Result so far: 82536.17
If we take 4508 away from 5060, we end up with 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Let's proceed to step 11:
The number 644 fits into 5520 8 times, leaving a remainder of 368.
Write down 8 as next digit of the result. 
Result so far: 82536.178
If we take 5152 away from 5520, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Moving on to step 12:
644 can be fit into 3680 5 times, resulting in a remainder of 460.
Write down 5 as next digit of the result. 
Result so far: 82536.1785
Deduct 3220 from 3680 and we're left with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Moving on to step 13:
When dividing 4600 by 644, we get 7 with a remainder of 92.
Write down 7 as next digit of the result. 
Result so far: 82536.17857
Deduct 4508 from 4600 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 14:
When dividing 920 by 644, we get 1 with a remainder of 276.
Put 1 as the next digit of the answer. 
Result so far: 82536.178571
Subtracting 644 from 920 leaves us with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Moving on to step 15:
The number 644 fits into 2760 4 times, leaving a remainder of 184.
Use 4 as the next digit of our solution. 
Result so far: 82536.1785714
The remainder is 184 after subtracting 2576 from 2760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Moving on to step 16:
If we divide 1840 by 644, we get 2 and a remainder of 552.
The number 2 becomes the next digit in our result. 
Result so far: 82536.17857142
If we subtract 1288 from 1840, we get 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

The quotient of the division is 82536.17857142, and the remainder is 5.52e-07.